3100 watt generator. Two roof units. Haven't had trouble running one at a time in the past. This weekend neither of them wanted to start on the portable generator. The transfer switch sounded like it was chattering. Not sure if I should be lookng at the transfer switch, the generator or the start up capacitors on the air conditioners. Does replacing the capacitors help them start easier?

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Even on not economy mode it was doing it. Not high altitude. How do you check for low voltage during short bursts of high load?
Where do you get the hard start capacitors? I will check for loose connections as well.

If it's running at speed and you switch on the AC, it should hold the speed but get louder as it takes on the load.

If it's slowing down, check for a plugged gas filter or worse, a dirty main jet in the carb.

If there is an open outlet you could measure the voltage there. Get a AC volt meter and stick a probe in each slot of the receptical and read the meter. It should hold 120 volts, even when starting the AC.

Not bogging. You can hear it load the generator though. It has always been marginal when it was cycling. Once it is on, you are good to go. A hard start kit seems like a no brainer. Wish I could find them locally. Pretty cheap through Amazon though. I will check voltage also.
Thank you all for your input!!

Yesterday afternoon we ordered two of the hard start capacitors from Amazon. I come home from work today......here! A half hour later both were installed, and tested. I can leave the generator on economy mode just as was said above. Thanks for the great tip!